CN104003780A - Nitrogen-sulfur phosphate fertilizer and preparation method thereof - Google Patents
Nitrogen-sulfur phosphate fertilizer and preparation method thereof Download PDFInfo
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Abstract
The invention discloses a nitrogen-sulfur phosphate fertilizer and a preparation method thereof. The nitrogen-sulfur phosphate fertilizer comprises the following components by weight percent: 1-15% of sulphur, 30-50% of phosphate fertilizer, 20-40% of ammonium sulfate and 5-10% of ammonium phosphate, or 15-40% of sulphur, 50-80% of phosphate fertilizer, 5-10% of ammonium sulfate and 10-20% of ammonium phosphate. By adopting the nitrogen-sulfur phosphate fertilizer, the utilization rate of the fertilizer can be improved, sulphur is supplied, the soil pH is adjusted, the nitrogen-sulfur phosphate fertilizer is green, and can avoid and kill insect pests, excellent agricultural products are ensured, the yield is improved, the pollution is reduced, the ecological environment of the soil is improved, and high-yield, excellent, green and ecological production of the crop is facilitated. The invention discloses a functional fertilizer (insecticide-fertilizer) with a plurality of elements and effects, and a preparation method. By a field test, the grain can be improved by 7.3-12.8% by adopting the fertilizer in comparison with the conventional fertilizer, the garlic is increased by 18.6%, the nitrogen-sulfur phosphate fertilizer has the yield-increasing effect on crops such as peanuts and the like, and is applicable to fertilization on all crops, the pH of the soil can be reduced by 0.01-2.0, and the utilization rate of the phosphate fertilizer in the quarter is improved by 5-13%.
Description
Technical field
The present invention relates to agricultural and technical field of fertilizer, especially, relate to a kind of nitrogen sulphur phosphate fertilizer and preparation method thereof.
Background technology
Phosphorus element is crop one of necessary three large elements in process of growth, and phosphorus is the very active element of chemical property, can with most elements react with.Phosphate ion is more easily fixed in soil, holds state phosphorus and is difficult to discharge and affects phosphorus and be absorbed by plants thereby form to close.Through this season utilization ratio that a large number of experiments show that phosphate fertilizer both at home and abroad, substantially between 10-25%, lower than the utilization ratio of nitrogenous fertilizer, potash fertilizer, this season utilization ratio and the stack utilization ratio that improve phosphate fertilizer are to improve the important leverage of crop yield and quality.For the phosphate fertilizer in being manured into soil, be divided into water-soluble, weak acid dissolubility and difficultly soluble phosphatic fertilizer by dissolving properties; Water soluble phosphorous fertilizer comprises normal superphosphate, double superhosphate, potassium primary phosphate, ammonium phosphate, nitrophosphate fertilizer etc., water soluble phosphorous fertilizer can be water-soluble, easy utilization absorbed by crops, its main component is dihydrogen phosphate, water-soluble fertilizer efficiency is fast, but the phosphorus of solubilised state is subject to the impact of various factors and is degenerated to weak acid dissolubility or insoluble state in soil, particularly the metal ion in soil or ionic group have adsorptive power to phosphate radical, it or borrow Coulomb's force effect or be adsorbed on clay mineral because the effect of chemical force causes the exchange interaction of coordinating group.Weak acid dissolubility phosphate fertilizer, comprise fused(calcium magnesium)phosphate, defluorinated phosphate, thomas phosphate, precipitated phosphate etc., this class phosphate fertilizer is water insoluble, but can be dissolved by weak acid, also can be by compound dissolutions such as the multiple organic acids of crop root exudation, main component is hydrogen phosphate, and contained phosphate radical in fused(calcium magnesium)phosphate, weak acid dissolubility phosphate fertilizer movability in soil is little.Difficultly soluble phosphatic fertilizer mainly refers to ground phosphate rock and bone meal, and this class fertilizer is the water insoluble weak acid that is also insoluble to both, and the phosphate component complexity in fertilizer wherein only has the Crop utilization that minority can be strong to phosphorus receptivity.The phosphate fertilizer of using, through after transforming, has been different from original fertilizer in nature.Quite complicated in the conversion process of Soil Phosphorus, be subject to multiple interior extraneous factor as the soil texture, PH, organic matter etc., being especially subject to soil acidity or alkalinity is that PH has the greatest impact, different soils PH situation often and in soil form and the quantity of phosphorus containg substances closely related.In calcareous soil, because accumulating a large amount of calcium carbonate (magnesium) salt, thereby be mainly to exist taking calcium (magnesium) as main phosphate conversion process; Acid soil is how containing active iron (aluminium), in soil taking the phosphate conversion process of iron (aluminium) as main.Simultaneously domestic have many tests to show, crop inhales one of essential condition of phosphorus, also must have suitable N/P ratio, when soil hydrolysis nitrogen content abundance and available phosphorus content level while inhaling requiring of phosphorus lower than crop, has only and execute phosphorus and could improve crop yield.
For sulphur, in world wide, a lack of sulfur is very general at present, and a lack of sulfur phenomenon has appearred in existing 72 countries and regions, the whole world now according to statistics, also has the potential trend spreading.Pertinent data demonstration, also there is the anthropogenic soil a lack of sulfur of 30% left and right in China, and area reaches 600,000,000 mu, also has 20% the potential a lack of sulfur of soil, area is about 3.6 hundred million mu, and both are added the existing 9.6 hundred million mu of as lack of sulfur of soil of China's farming, accounts for country and ensures red line regulation the more than 50% of 1,800,000,000 mu of cultivated areas.Moreover along with increase, the agriculture production of fertilizer amount is intensive and the popularization of high-yield variety, crop yield significantly improves, and causes crop to take away increasing sulphur nutrient from soil; The 2nd, use in a large number the high density such as urea, phosphorus ammonium without sulfur fertilizer material, and the sulfur-containing fertilizers such as calcium superphosphate, coarse whiting, fertilizer and pesticide dosage reduce year by year, supplement to the sulphur nutrient in soil fewer and feweri; The 3rd, environment is improving year by year, and the sulfurous gas in atmosphere is progressively controlled, and causes airborne sulfurous gas precipitation fewer and feweri.The 4th, azophoska closes (mixing) fertile consumption to be increased, and causes nutrients ratio imbalance, affects absorption and the utilization of sulphur; The 5th, as fertilizer sources is single by the kind of sulphur, and the consumption of fertilizer sulphur and using bears the character of much blindness, and the input structure of unit surface sulphur is extremely unreasonable.Many sulfur-containing fertilizers all can be used for alleviating the shortage problem of thionin, and wherein sulphur is a kind of high density, cheap sulfur fertilizer kind, and it is both economical on a lack of sulfur soil, using.Research shows.The rate of oxidation of using sulphur in phosphate fertilizer situation is higher 2 times than not executing phosphate fertilizer, and this promoter action of phosphorus is that it is mutually beneficial that p and s sulphur is used simultaneously because phosphorus has promoted the increase of thiobacillus thiooxidans; Promote the thio-oxidizing while at phosphorus, the acid that sulphur oxidation produces also can improve the validity of phosphorus, can reduce the pH value of soil simultaneously, change the potential of hydrogen of soil, the effect of accomplish to reduce P in soil H value on alkaline soil, mending sulphur volume increase, can play again to use regulating fertilizer formula to compare and not reducing P in soil H value on acid soil, reach the effect of mending sulphur volume increase.
Summary of the invention
The object of the invention is exactly in order to reduce to greatest extent phosphorus fixing in soil, to increase the validity of phosphorus, improve this season utilization ratio of phosphate fertilizer, regulate P in soil H, supplementing thionin.For achieving the above object, the present invention intends adopting following technical scheme:
The present invention relates to a kind of nitrogen sulphur phosphate fertilizer, it is characterized in that containing following weight percent component: sulphur 1-15%, phosphate fertilizer 30-50%, ammonium sulfate 20-40%, ammonium phosphate 5-10%; Or sulphur 15-40%, phosphate fertilizer 50-80%, ammonium phosphate 5-10%, ammonium sulfate 10-20%.
In a preferred embodiment of the present invention, described phosphate fertilizer is water soluble phosphorous fertilizer/weak acid dissolubility phosphate fertilizer/difficultly soluble phosphatic fertilizer.
In a preferred embodiment of the present invention, described water soluble phosphorous fertilizer is selected from one or more the combination in normal superphosphate, double superhosphate, potassium primary phosphate, ammonium phosphate, nitrophosphate fertilizer.
In a preferred embodiment of the present invention, described weak acid dissolubility phosphate fertilizer is selected from one or more combination of fused(calcium magnesium)phosphate, defluorinated phosphate, thomas phosphate, precipitated phosphate.
In a preferred embodiment of the present invention, described difficultly soluble phosphatic fertilizer is selected from one or more combination of ground phosphate rock, bone meal.
In another aspect of this invention, also relate to the preparation method of above-mentioned nitrogen sulphur phosphate fertilizer, described preparation method's a embodiment is: by sulfur crushing sieve reach particle diameter be powdery between 0.050mm-0.150mm 100% by 16 mesh sieves and 50% by 100 mesh sieves, then carry out as follows:
(1) batching: by weight ratio the basic materials such as common phosphate fertilizer, ammonium sulfate, ammonium phosphate, sulphur are excessively put in tumbler mixing tank and carried out (or in stirrer);
(2) be uniformly mixed: the raw material in tumbler mixing tank (stirrer) is stirred, after pulverizer is pulverized, is crushed to 6 mesh sieves, carry airtight place to deposit;
(3) slaking: deposit after certain hour airtight mixture, after physics and chemical reaction are fully completed, then fragmentation packs after crossing 6 mesh sieves;
(4) packaging warehouse-in: after fragmentation is crossed 6 mesh sieves and divided, measure, pack, put in storage after qualified product classification.
In another aspect of this invention, also relate to the preparation method of above-mentioned nitrogen sulphur phosphate fertilizer, described preparation method's a embodiment is: sulfur crushing is sieved, and to reach particle diameter be the powdery between 0.050mm-0.150mm, then carries out as follows:
(1) batching: by weight ratio raw material phosphate fertilizer, ammonium sulfate, ammonium phosphate, sulphur are put in stirrer;
(2) be uniformly mixed: the raw material in stirrer is stirred, after pulverizer is pulverized, be delivered to tablets press;
(3) dry: tablets press mixture to be out dried, and depending on granulation situation, temperature to be adjusted;
(4) cooling: dry mixture is delivered to cooler through transfer roller and carries out cooling;
(5) screening: cooling cylinder granular chemical fertilizer is out delivered to trommel screen and sieves;
(6) packaging warehouse-in: after trommel screen screening, powder returns to stirrer and reprocesses, and measures, packs, puts in storage after qualified product classification.
In another aspect of this invention, also relate to the preparation method of above-mentioned nitrogen sulphur phosphate fertilizer, described preparation method's a embodiment is: sulfur crushing is sieved, and to reach particle diameter be the powdery between 0.050mm-0.150mm, then carries out as follows:
(1) pulverize: raw material sulphur is first pulverized for subsequent use;
(2) batching: by weight ratio the phosphate fertilizer crushing in advance, ammonium sulfate, ammonium phosphate, sulphur are put in stirrer;
(3) be uniformly mixed: the raw material in stirrer is stirred, after pulverizer is pulverized again, be delivered to extrusion machine and push;
(4) screening: cold extrusion granular chemical fertilizer is out delivered to trommel screen and sieves.
(5) packaging warehouse-in: after trommel screen screening, powder returns to stirrer and reprocesses, and qualified product measure, pack, put in storage.
The present invention passes through, by nitrogenous ammonium sulfate and ammonium phosphate and sulphur mixing, to reach with the short phosphorus of nitrogen, and with the short sulphur of phosphorus, again with the short phosphorus of sulphur, nitrogen phosphorus sulphur is helped each other conversely, High-Efficiency Utilization of Phosphorus element, this season utilization ratio of raising phosphorus; Supplement the shortage of soil thionin simultaneously, improve the potential of hydrogen of soil, the effect of playing soil acidity regulator reduces the scope of P in soil H value at 0.01-2.0; Utilize agricultural chemicals (as naphthalene; the naphthalene that contains 3-5% in proportioning fertilizer Raw) special odor that possesses can walk quickly and keep away subterranean pest-insect; the healthy and strong growth of protective plant root system and underground stem tuber; realize the effect of green wormer; this agricultural chemicals repellent subterranean pest-insect does not have residual in soil; and not polluting agricultural-food, is the optimal selection that solves pesticide contaminated soil, produces green agricultural product.
The present invention be mainly choose phosphate fertilizer (comprising water soluble phosphorous fertilizer/citrate acid soluble phosphatic fertilizer/difficultly soluble phosphatic fertilizer) one or more, ammonium phosphate, ammonium sulfate, sulphur and contain appropriate agricultural chemicals (naphthalene) together evenly hybrid process produce a kind of multielement multiple-effect multi-Functional Fertilizers.In material combination, mainly use phosphate fertilizer, in the time using solubility in citric acid or insoluble as proportioning raw materials, should consider to be preferentially applied on acid soil, accomplish spirit and adjust formula.General calcium superphosphate (general calcium) main component is the calcium sulfate of water-soluble phosphoric acid one calcium and insoluble, also contain a small amount of free phosphoric acid and sulfuric acid, water-soluble is acid-reaction, after being manured into soil, first around fertilising point, form subenvironment acidity, a phosphorus part is absorbed by crop root, another part is likely fixed, and uses separately general calcium or other slightly acidics and difficultly soluble phosphatic fertilizer low by this season crop utilization rate; After mixing with sulphur, ammonium sulfate, ammonium phosphate, sulphur also decomposes and continues to form acid soil environment under the effect at Laetiporus sulphureus (Bull. Ex Fr.) Bond. Et Singer. in the acid subenvironment that first calcium superphosphate or other slightly acidics and difficultly soluble phosphatic fertilizer form, and is just conducive to the release of phosphorus; Ammonium sulfate, monoammonium phosphate are all that physiological acidic fertilizer can react acid in soil simultaneously, and the variation that forms edatope with this by Multiple Superposition effect, reduces phosphorus fixation, changes soil acidity or alkalinity simultaneously, reduce P in soil H value.Sulphur is as single element, be insoluble in water, aftereffect is long, after being manured into soil, just can be utilized through microbiological oxidation as acidity regulator, and its rate of oxidation at soil is linearly relevant to the total surface area of itself, more detailed rules and regulations rate of oxidation in soil is higher for particle diameter, because the reduction of sulphur particle diameter can increase the contact area of sulphur and soil, expand the active area of microorganism, thereby produce more vitriol, improve the oxidation utilization ratio of sulphur, accelerate the speed that P in soil H value reduces.So sulphur is using powdery as raw material, particle diameter is preferably between 0.050mm-0.150mm.Nitrogen sulphur phosphate fertilizer of the present invention can effectively reduce P in soil H value through combined reaction in soil, improves phosphate fertilizer this season utilization ratio, increases crop yield and improves quality.Fertilizer of the present invention is used the weight ratio that can suitably adjust sulphur, ammonium sulfate, ammonium phosphate in acid soil, increase the ratio of solubility in citric acid or difficultly soluble phosphatic fertilizer, guarantee that phosphate fertilizer utilization efficiency improves, make again P in soil H value fall off rate less, reach the sustainable use cost-saving synergistic again that ensures soil quality and environment; When this fertilizer increases the weight ratio of the raw materials such as sulphur, ammonium sulfate, monoammonium phosphate, finished product being processed into powdery can do soil conditioner (acidity regulator) and use; When being processed into, particulate state can be used as slow release fertilizer promotion nitrogen and phosphorus element is absorbed by crops.
The present invention can reach raising utilization rate of fertilizer, regulates P in soil H, supplements thionin, and green is kept away killing insect pest, ensures agricultural-food high-quality, improves output, reduces and pollutes, and soil protection ecotope, promotes high crop yield, high-quality, green, ecological production.This invention is a kind of multielement multiple-effect multi-Functional Fertilizers (medicine fertilizer) and preparation method thereof.Through field test, use this fertilizer and conventional fertilizer application contrast and produce more food and reach 7.3%-12.8%, peanut yield increasing 12.5%, garlic production promoting more than 18.6%, makes garlic quality be improved simultaneously; This fertilizer is applicable to all crop applyings and crop is had to production-increasing function, and particularly a lack of sulfur soil and happiness sulphur crop yield effect are more obvious; Can reduce the scope of P in soil H0.01-2.0, improve this season utilization ratio 5-13% of phosphate fertilizer simultaneously.
Embodiment:
Below in conjunction with embodiment, the invention will be further described.To further describe the present invention by the following example, but the invention is not restricted to these embodiment, be exactly to use the effect that this fertilizer of different ingredients produces in following production example,
Embodiment 1 (preparation of powdered fertilizer)
Be that 0.050mm-0.150mm powdery and 50 weight parts contain P by the sulphur granulation diameter of 28 weight part as fertilizer sources regulating effects
2o
512% normal superphosphate mixes uniformly with the ammonium sulfate of 10 weight parts and the monoammonium phosphate of 12 weight parts, and by pulverizer, mixture is all pulverized, and obtaining median size is the powdered fertilizer 1 of 1-5mm.Through 3 years field tests, 50 kilograms, this fertilizer and the N and the P that use identical nutrient for mu
2o
5the calcium superphosphate of composition and urea (hereinafter to be referred as common fertilizer) contrast, on the alkaline soil that is 8.4 in P in soil H value, garlic is used this fertilizer and uses common fertilizer mu and on average increase production 18.6%, applying fertilizer fetches earth for latter 55 days measures topsoil soils PH and on average declines 1.45, uses common fertilizer community topsoil soils pH value and does not decline.Location test in 3 years is used this fertilizer topsoil soils pH value decline 1.95 through being determined on alkaline soil, uses common fertilizer P in soil H value and declines 0.01.
Embodiment 2 (preparation of powdered fertilizer)
Be that 0.050mm-0.150mm powdery and 60 weight parts contain P by the sulphur granulation diameter of 10 weight part as fertilizer sources regulating effects
2o
512% fused(calcium magnesium)phosphate mixes uniformly with the ammonium sulfate of 20 weight parts and the monoammonium phosphate of 10 weight parts, and by pulverizer, mixture is all pulverized, and obtaining median size is the powdered fertilizer 2 of 1-5mm.Through 3 years field tests, 50 kilograms, this fertilizer and the N and the P that use identical nutrient for mu
2o
5the fused(calcium magnesium)phosphate of composition and urea (hereinafter to be referred as common fertilizer) contrast, on the acid soil that is 6.8 at pH value, peanut is used this fertilizer and is used common fertilizer mu and on average increase production 12.5%, applying fertilizer fetches earth for latter 55 days measures topsoil soils P in soil H and on average declines 0.01, uses common fertilizer community topsoil soils pH value and does not decline.Location test in 3 years is used this fertilizer topsoil soils pH value decline 0.01 through being determined on sour earth, uses common fertilizer and does not decline.
Embodiment 3 (preparation of powdered fertilizer)
Be that 0.050mm-0.150mm powdery and 60 weight part higher-grade ground phosphate rock mix uniformly with the ammonium sulfate of 10 weight parts and the monoammonium phosphate of 10 weight parts by the sulphur granulation diameter of 20 weight part sulphur as fertilizer sources regulating effects, and by pulverizer, mixture is all pulverized, obtaining median size is the powdered fertilizer 3 of 1-5mm.Through 3 years field tests, 50 kilograms, this fertilizer and the N and the P that use identical nutrient for mu
2o
5the ground phosphate rock of composition and urea (hereinafter to be referred as common fertilizer) contrast, on the acid soil that is 6.8 at pH value, this fertilizer of Yield-increasing Baallus In Maize is used common fertilizer mu and is on average increased production 9.3%, applying fertilizer fetches earth for latter 55 days measures topsoil soils P in soil H and does not decline, and uses common fertilizer community topsoil soils pH value and does not also change.Location test in 3 years is used this fertilizer and uses common fertilizer topsoil soils pH value and all do not change through being determined at acid soil.
, calculate and use this fertilizer phosphate fertilizer this season utilization ratio and can improve 5-13% to experimental plot soil sample with to crop plant, seed assay through for many years.The light salt affected soil that is 7.8 at pH value, tests on corn, and arranging and using this fertilizer (is the P in nitrogen sulphur phosphate fertilizer
2o
5mainly from general calcium), normal superphosphate (general calcium), do not execute three processing of any phosphate fertilizer (applied nitrogen and potash fertilizer), wherein use P in nitrogen sulphur phosphate fertilizer in community
2o
5measure and use P in general calcium
2o
5n, K in Liang Jige community
2o amount of application is identical, every field management measure is consistent in test; Test is processed and is adopted three repetitions, community random alignment.Utilize test-results data, according to utilization rate of fertilizer formula:
Calculate phosphate fertilizer this season utilization ratio by formula, according to test-results Information integration computational analysis in 3 years, using normal superphosphate community average phosphate fertilizer this season utilization ratio was 17.5%; Use nitrogen sulphur phosphate fertilizer (P
2o
5mainly from general calcium) community average phosphate fertilizer this season utilization ratio is 29.6%; Both relatively, use nitrogen sulphur phosphate fertilizer and differ 12.1% than single administration normal superphosphate this season phosphate fertilizer utilization efficiency, show through variance analysis, and difference performance is very remarkable.
The above is the preferred embodiments of the present invention; it should be pointed out that for those skilled in the art, do not departing under the prerequisite of principle of the present invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (8)
1. a nitrogen sulphur phosphate fertilizer, is characterized in that containing following weight percent component: sulphur 1-15%, phosphate fertilizer 30-50%, ammonium sulfate 20-40%, ammonium phosphate 5-10%; Or sulphur 15-40%, phosphate fertilizer 50-80%, ammonium phosphate 5-10%, ammonium sulfate 10-20%; Optional, in described component, contain or do not contain other component.
2. nitrogen sulphur phosphate fertilizer according to claim 1, described phosphate fertilizer is water soluble phosphorous fertilizer/weak acid dissolubility phosphate fertilizer/difficultly soluble phosphatic fertilizer.
3. nitrogen sulphur phosphate fertilizer according to claim 2, described water soluble phosphorous fertilizer is selected from one or more the combination in normal superphosphate, double superhosphate, potassium primary phosphate, ammonium phosphate, nitrophosphate fertilizer.
4. nitrogen sulphur phosphate fertilizer according to claim 2, described weak acid dissolubility phosphate fertilizer is selected from one or more combination of fused(calcium magnesium)phosphate, defluorinated phosphate, thomas phosphate, precipitated phosphate.
5. nitrogen sulphur phosphate fertilizer according to claim 2, described difficultly soluble phosphatic fertilizer is selected from one or more combination of ground phosphate rock, bone meal.
6. the preparation method of nitrogen sulphur phosphate fertilizer described in claim 1-5 any one, described preparation method's a embodiment is: sulfur crushing is sieved, and to reach particle diameter be the powdery between 0.050mm-0.150mm, then carries out as follows:
(1) batching: by weight ratio the basic materials such as common phosphate fertilizer, ammonium sulfate, ammonium phosphate, sulphur are excessively put in tumbler mixing tank and carried out (or in stirrer);
(2) be uniformly mixed: the raw material in tumbler mixing tank (stirrer) is stirred, after pulverizer is pulverized, is crushed to 6 mesh sieves, carry airtight place to deposit;
(3) slaking: deposit after certain hour airtight mixture, after physics and chemical reaction are fully completed, then fragmentation packs after crossing 6 mesh sieves;
(4) packaging warehouse-in: after fragmentation is crossed 6 mesh sieves and divided, measure, pack, put in storage after qualified product classification.
7. the preparation method of nitrogen sulphur phosphate fertilizer described in claim 1-4 any one, described preparation method's a embodiment is: sulfur crushing is sieved, and to reach particle diameter be the powdery between 0.050mm-0.150mm, then carries out as follows:
(1) batching: by weight ratio raw material phosphate fertilizer, ammonium sulfate, ammonium phosphate, sulphur are put in stirrer;
(2) be uniformly mixed: the raw material in stirrer is stirred, after pulverizer is pulverized, be delivered to tablets press;
(3) dry: tablets press mixture to be out dried, and depending on granulation situation, temperature to be adjusted;
(4) cooling: dry mixture is delivered to cooler through transfer roller and carries out cooling;
(5) screening: cooling cylinder granular chemical fertilizer is out delivered to trommel screen and sieves;
(6) packaging warehouse-in: after trommel screen screening, powder returns to stirrer and reprocesses, and measures, packs, puts in storage after qualified product classification.
8. the preparation method of nitrogen sulphur phosphate fertilizer described in claim 1-4 any one, described preparation method's a embodiment is: by sulfur crushing sieve reach particle diameter be powdery between 0.050mm-0.150mm 100% sulphur by 16 mesh sieves and have 50% by 100 mesh sieves, then carry out as follows:
(1) pulverize: raw material sulphur is first pulverized for subsequent use;
(2) batching: by weight ratio the phosphate fertilizer crushing in advance, ammonium sulfate, ammonium phosphate, sulphur are put in stirrer;
(3) be uniformly mixed: the raw material in stirrer is stirred, after pulverizer is pulverized again, be delivered to extrusion machine and push;
(4) screening: cold extrusion granular chemical fertilizer is out delivered to trommel screen and sieves;
(5) packaging warehouse-in: after trommel screen screening, powder returns to stirrer and reprocesses, and qualified product measure, pack, put in storage.
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105254341A (en) * | 2015-08-14 | 2016-01-20 | 云南云天化股份有限公司 | Preparation method of sulfur-containing heavy calcium |
| CN105272381A (en) * | 2015-10-11 | 2016-01-27 | 云南禄丰勤攀磷化工有限公司 | Making method of calcium superphosphate |
| CN105859439A (en) * | 2016-05-31 | 2016-08-17 | 湖北富邦科技股份有限公司 | Granular ammonium dihydrogen phosphate with quick-acting and long-acting sulfur and zinc and preparation method thereof |
| CN106396854A (en) * | 2016-08-28 | 2017-02-15 | 云南禄丰勤攀磷化工有限公司 | Calcium superphosphate fertilizer |
| CN108863656A (en) * | 2018-07-25 | 2018-11-23 | 郭珊珊 | A kind of multi-functional phosphate fertilizer particle and its manufacture craft of the manufacture of calcium monohydrogen phosphate mixing sodium bentonite |
| CN109651002A (en) * | 2019-03-04 | 2019-04-19 | 何玲玲 | One cultivates peanut mixing fertilizer specially and preparation method thereof |
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2014
- 2014-06-03 CN CN201410239280.1A patent/CN104003780A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105254341A (en) * | 2015-08-14 | 2016-01-20 | 云南云天化股份有限公司 | Preparation method of sulfur-containing heavy calcium |
| CN105254341B (en) * | 2015-08-14 | 2018-07-20 | 云南云天化股份有限公司 | A kind of preparation method of sulfur-bearing coarse whiting |
| CN105272381A (en) * | 2015-10-11 | 2016-01-27 | 云南禄丰勤攀磷化工有限公司 | Making method of calcium superphosphate |
| CN105859439A (en) * | 2016-05-31 | 2016-08-17 | 湖北富邦科技股份有限公司 | Granular ammonium dihydrogen phosphate with quick-acting and long-acting sulfur and zinc and preparation method thereof |
| CN106396854A (en) * | 2016-08-28 | 2017-02-15 | 云南禄丰勤攀磷化工有限公司 | Calcium superphosphate fertilizer |
| CN108863656A (en) * | 2018-07-25 | 2018-11-23 | 郭珊珊 | A kind of multi-functional phosphate fertilizer particle and its manufacture craft of the manufacture of calcium monohydrogen phosphate mixing sodium bentonite |
| CN109651002A (en) * | 2019-03-04 | 2019-04-19 | 何玲玲 | One cultivates peanut mixing fertilizer specially and preparation method thereof |
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